Thickest Hot Tub Covers: 6"-4" Tapered with 1.0# (R23.85-R37) $488.88
Product Review (submitted on January 9, 2014):
Love the custom cover. It fits great, even the oddly shaped section. The staff even had a suggestion that makes the cover easier to use and, hopefully, extends the life. Thanks! (order# 15197)